package com.riant.day07;

import java.util.concurrent.ConcurrentHashMap;

/**
 * @Classname Demo04
 * @Description TODO
 * @Date 2021/3/22 0:06
 * @Created by 张斌
 */
public class Demo04 {
    public static void main(String[] args) {
        ConcurrentHashMap<Integer,String> concurrentHashMap=new ConcurrentHashMap<>();
    }
}
